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Editorial Team
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Asked: 2026-05-24T16:29:29+00:00

Here is a code fragment that speaks for itself. Thank you! class Foo :

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Here is a code fragment that speaks for itself. Thank you!

class Foo : private std::vector<int>
{
public:
    void swap(Foo& x)
    {
        std::swap(bar, x.bar);
        // what goes here?
    }
private:
    int bar;
};
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1 Answer

  1. Editorial Team
    std::vector<int>::swap(x);

    But, you shouldn’t inherit from vector.

    Due to injected-class-names, this can be rewritten as

    vector::swap(x);
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